[TowerTalk] Ramp up

[Denis Coolican]

I drive a prop pitch rotator with a 90 volt DC motor.
I was wondering if anyone  had any circuits or devices for controlling a
DC
Motor.  I want to control the ramp up and ramp down on a motor driving
the propitch on the 5 element 20 meter beam.  I want to bring it up to
full speed in 5 secs and then, when I turn it off, I want it to slow
down
in 5 secs.

That way I do not have have sudden starts and stops.

I don't want to reinvent the wheel again, unless I have to.

Anything on this kind of stuff for this homebrewer!


Denis Ve6AQ / Ve6FI


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